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What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...e in the C++ community(particularly ##c++ on freenode) resent the use of wstrings and wchar_t , and their use in the windows api. What is exactly "wrong" with wchar_t and wstring , and if I want to support internationalization, what are some alternatives to wide characters?
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What is the difference between memmove and memcpy?
... location pointed by the destination. (http://www.cplusplus.com/reference/cstring/memcpy/)
Consider the following examples:
#include <stdio.h>
#include <string.h>
int main (void)
{
char string [] = "stackoverflow";
char *first, *second;
first = string;
second = string...
Read/Write String from/to a File in Android
...ed from EditText. Then I want the same file to return the inputted text in String form and save it to another String which is to be used later.
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How I can I lazily read multiple JSON values from a file/stream in Python?
...lures return a ValueError, and you have to parse out the position from the string, e.g.
def stream_read_json(fn):
import json
import re
start_pos = 0
with open(fn, 'r') as f:
while True:
try:
obj = json.load(f)
yield obj
...
What are the advantages of using nullptr?
...pecified by C standard useless in many C++ expressions. For example:
std::string * str = NULL; //Case 1
void (A::*ptrFunc) () = &A::doSomething;
if (ptrFunc == NULL) {} //Case 2
If NULL was defined as (void *)0, neither of above expressions would work.
Case 1: Will not com...
jQuery dot in ID selector? [duplicate]
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This is also a lot of extra processing on jQuery's part that is unnecessary, where all you really need to do is escape the "." character...
– Ian
Nov 25 '12 at 7:48
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How many and which are the uses of “const” in C++?
... compiler help you to decide when and when not you need to copy.
struct MyString {
char * getData() { /* copy: caller might write */ return mData; }
char const* getData() const { return mData; }
};
Explanation: You might want to share data when you copy something as long as the data of th...
Remove the last three characters from a string
I want to remove last three characters from a string:
14 Answers
14
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NSLog the method name with Objective-C in iPhone
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print(__FUNCTION__) // Swift
NSLog(@"%@", NSStringFromSelector(_cmd)); // Objective-C
Swift 3 and above
print(#function)
share
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improve this answer
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Most efficient T-SQL way to pad a varchar on the left to a certain length?
...your padding character and @n is the number of characters in the resulting string (assuming you need the padding because you are dealing with a fixed length).
But as I said you should really avoid doing this in your database.
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